Home / 209,180.52-313,808.40-76,247.28

Finding the Fourth Proportional to 209,180.52, 313,808.40 and 76,247.28

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Solution

The fourth proportional to 209,180.52, 313,808.40 and 76,247.28 is: 114,384.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,180.52 : 313,808.40 = 76,247.28 : x
  2. Step 2: Convert to fraction form
    209,180.52/313,808.40 = 76,247.28/x
  3. Step 3: Cross multiply
    209,180.52x = 313,808.40 × 76,247.28
  4. Step 4: Simplify right side
    209,180.52x = 23,927,036,941.15
  5. Step 5: Solve for x
    x = 23,927,036,941.15/209,180.52
  6. Step 6: Final answer
    x = 114,384.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.